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<pre><span class="sourceLineNo">001</span><a name="line.1"></a>
<span class="sourceLineNo">002</span>/*<a name="line.2"></a>
<span class="sourceLineNo">003</span> * Copyright (C) 2012 Archie L. Cobbs. All rights reserved.<a name="line.3"></a>
<span class="sourceLineNo">004</span> *<a name="line.4"></a>
<span class="sourceLineNo">005</span> * $Id: IndentXMLStreamWriter.html 820 2014-01-22 16:41:52Z archie.cobbs $<a name="line.5"></a>
<span class="sourceLineNo">006</span> */<a name="line.6"></a>
<span class="sourceLineNo">007</span><a name="line.7"></a>
<span class="sourceLineNo">008</span>package org.dellroad.stuff.xml;<a name="line.8"></a>
<span class="sourceLineNo">009</span><a name="line.9"></a>
<span class="sourceLineNo">010</span>import java.util.Arrays;<a name="line.10"></a>
<span class="sourceLineNo">011</span><a name="line.11"></a>
<span class="sourceLineNo">012</span>import javax.xml.stream.XMLStreamConstants;<a name="line.12"></a>
<span class="sourceLineNo">013</span>import javax.xml.stream.XMLStreamException;<a name="line.13"></a>
<span class="sourceLineNo">014</span>import javax.xml.stream.XMLStreamWriter;<a name="line.14"></a>
<span class="sourceLineNo">015</span><a name="line.15"></a>
<span class="sourceLineNo">016</span>/**<a name="line.16"></a>
<span class="sourceLineNo">017</span> * Wrapper for an underlying {@link XMLStreamWriter} that "pretty-prints" the XML by replacing the whitespace between XML tags<a name="line.17"></a>
<span class="sourceLineNo">018</span> * so that the result is properly indented.<a name="line.18"></a>
<span class="sourceLineNo">019</span> *<a name="line.19"></a>
<span class="sourceLineNo">020</span> * &lt;p&gt;<a name="line.20"></a>
<span class="sourceLineNo">021</span> * This class will also fixup a missing/incomplete initial XML declaration.<a name="line.21"></a>
<span class="sourceLineNo">022</span> * &lt;/p&gt;<a name="line.22"></a>
<span class="sourceLineNo">023</span> */<a name="line.23"></a>
<span class="sourceLineNo">024</span>public class IndentXMLStreamWriter extends StreamWriterDelegate {<a name="line.24"></a>
<span class="sourceLineNo">025</span><a name="line.25"></a>
<span class="sourceLineNo">026</span>    /**<a name="line.26"></a>
<span class="sourceLineNo">027</span>     * Initial value for the {@linkplain #setDefaultVersion default XML version}.<a name="line.27"></a>
<span class="sourceLineNo">028</span>     */<a name="line.28"></a>
<span class="sourceLineNo">029</span>    public static final String DEFAULT_VERSION = "1.0";<a name="line.29"></a>
<span class="sourceLineNo">030</span><a name="line.30"></a>
<span class="sourceLineNo">031</span>    /**<a name="line.31"></a>
<span class="sourceLineNo">032</span>     * Initial value for the {@linkplain #setDefaultEncoding default character encoding}.<a name="line.32"></a>
<span class="sourceLineNo">033</span>     */<a name="line.33"></a>
<span class="sourceLineNo">034</span>    public static final String DEFAULT_ENCODING = "UTF-8";<a name="line.34"></a>
<span class="sourceLineNo">035</span><a name="line.35"></a>
<span class="sourceLineNo">036</span>    /**<a name="line.36"></a>
<span class="sourceLineNo">037</span>     * Default number of spaces corresponding to one indent level.<a name="line.37"></a>
<span class="sourceLineNo">038</span>     */<a name="line.38"></a>
<span class="sourceLineNo">039</span>    public static final int DEFAULT_INDENT = 4;<a name="line.39"></a>
<span class="sourceLineNo">040</span><a name="line.40"></a>
<span class="sourceLineNo">041</span>    private final String newline = System.getProperty("line.separator", "\\n");<a name="line.41"></a>
<span class="sourceLineNo">042</span>    private final StringBuilder whitespaceBuffer = new StringBuilder();<a name="line.42"></a>
<span class="sourceLineNo">043</span>    private final int indent;<a name="line.43"></a>
<span class="sourceLineNo">044</span><a name="line.44"></a>
<span class="sourceLineNo">045</span>    private boolean addMissingXmlDeclaration = true;<a name="line.45"></a>
<span class="sourceLineNo">046</span>    private boolean indentAfterXmlDeclaration = true;<a name="line.46"></a>
<span class="sourceLineNo">047</span>    private String defaultVersion = DEFAULT_VERSION;<a name="line.47"></a>
<span class="sourceLineNo">048</span>    private String defaultEncoding = DEFAULT_ENCODING;<a name="line.48"></a>
<span class="sourceLineNo">049</span><a name="line.49"></a>
<span class="sourceLineNo">050</span>    private boolean started;<a name="line.50"></a>
<span class="sourceLineNo">051</span>    private boolean newlineAfter;<a name="line.51"></a>
<span class="sourceLineNo">052</span>    private int lastEvent = -1;<a name="line.52"></a>
<span class="sourceLineNo">053</span>    private int depth;<a name="line.53"></a>
<span class="sourceLineNo">054</span><a name="line.54"></a>
<span class="sourceLineNo">055</span>    /**<a name="line.55"></a>
<span class="sourceLineNo">056</span>     * Default constructor. Sets the indent to {@link #DEFAULT_INDENT}.<a name="line.56"></a>
<span class="sourceLineNo">057</span>     * The parent must be configured via {@link #setParent setParent()}.<a name="line.57"></a>
<span class="sourceLineNo">058</span>     */<a name="line.58"></a>
<span class="sourceLineNo">059</span>    public IndentXMLStreamWriter() {<a name="line.59"></a>
<span class="sourceLineNo">060</span>        this.indent = DEFAULT_INDENT;<a name="line.60"></a>
<span class="sourceLineNo">061</span>    }<a name="line.61"></a>
<span class="sourceLineNo">062</span><a name="line.62"></a>
<span class="sourceLineNo">063</span>    /**<a name="line.63"></a>
<span class="sourceLineNo">064</span>     * Convenience constructor. Equivalent to:<a name="line.64"></a>
<span class="sourceLineNo">065</span>     * &lt;blockquote&gt;<a name="line.65"></a>
<span class="sourceLineNo">066</span>     *  {@link #IndentXMLStreamWriter(XMLStreamWriter, int) IndentXMLStreamWriter}{@code (writer, }{@link #DEFAULT_INDENT}{@code )};<a name="line.66"></a>
<span class="sourceLineNo">067</span>     * &lt;/blockquote&gt;<a name="line.67"></a>
<span class="sourceLineNo">068</span>     *<a name="line.68"></a>
<span class="sourceLineNo">069</span>     * @param writer underlying writer<a name="line.69"></a>
<span class="sourceLineNo">070</span>     */<a name="line.70"></a>
<span class="sourceLineNo">071</span>    public IndentXMLStreamWriter(XMLStreamWriter writer) {<a name="line.71"></a>
<span class="sourceLineNo">072</span>        this(writer, DEFAULT_INDENT);<a name="line.72"></a>
<span class="sourceLineNo">073</span>    }<a name="line.73"></a>
<span class="sourceLineNo">074</span><a name="line.74"></a>
<span class="sourceLineNo">075</span>    /**<a name="line.75"></a>
<span class="sourceLineNo">076</span>     * Primary constructor.<a name="line.76"></a>
<span class="sourceLineNo">077</span>     *<a name="line.77"></a>
<span class="sourceLineNo">078</span>     * @param writer underlying writer<a name="line.78"></a>
<span class="sourceLineNo">079</span>     * @param indent number of spaces corresponding to one indent level, or negative for no inter-tag whitespace at all<a name="line.79"></a>
<span class="sourceLineNo">080</span>     */<a name="line.80"></a>
<span class="sourceLineNo">081</span>    public IndentXMLStreamWriter(XMLStreamWriter writer, int indent) {<a name="line.81"></a>
<span class="sourceLineNo">082</span>        super(writer);<a name="line.82"></a>
<span class="sourceLineNo">083</span>        this.indent = indent;<a name="line.83"></a>
<span class="sourceLineNo">084</span>    }<a name="line.84"></a>
<span class="sourceLineNo">085</span><a name="line.85"></a>
<span class="sourceLineNo">086</span>    /**<a name="line.86"></a>
<span class="sourceLineNo">087</span>     * Set whether to add an XML declaration, if missing.<a name="line.87"></a>
<span class="sourceLineNo">088</span>     *<a name="line.88"></a>
<span class="sourceLineNo">089</span>     * &lt;p&gt;<a name="line.89"></a>
<span class="sourceLineNo">090</span>     * Default is true.<a name="line.90"></a>
<span class="sourceLineNo">091</span>     * &lt;/p&gt;<a name="line.91"></a>
<span class="sourceLineNo">092</span>     */<a name="line.92"></a>
<span class="sourceLineNo">093</span>    public void setAddMissingXmlDeclaration(boolean addMissingXmlDeclaration) {<a name="line.93"></a>
<span class="sourceLineNo">094</span>        this.addMissingXmlDeclaration = addMissingXmlDeclaration;<a name="line.94"></a>
<span class="sourceLineNo">095</span>    }<a name="line.95"></a>
<span class="sourceLineNo">096</span><a name="line.96"></a>
<span class="sourceLineNo">097</span>    /**<a name="line.97"></a>
<span class="sourceLineNo">098</span>     * Set whether to "indent" (actually, just output a newline) after the XML declaration if necessary.<a name="line.98"></a>
<span class="sourceLineNo">099</span>     * In some cases, such as transforming into a DOM, this behavior must be disabled to avoid hierarchy<a name="line.99"></a>
<span class="sourceLineNo">100</span>     * exceptions due to characters not being allowed before the document element.<a name="line.100"></a>
<span class="sourceLineNo">101</span>     *<a name="line.101"></a>
<span class="sourceLineNo">102</span>     * &lt;p&gt;<a name="line.102"></a>
<span class="sourceLineNo">103</span>     * Default is true.<a name="line.103"></a>
<span class="sourceLineNo">104</span>     * &lt;/p&gt;<a name="line.104"></a>
<span class="sourceLineNo">105</span>     */<a name="line.105"></a>
<span class="sourceLineNo">106</span>    public void setIndentAfterXmlDeclaration(boolean indentAfterXmlDeclaration) {<a name="line.106"></a>
<span class="sourceLineNo">107</span>        this.indentAfterXmlDeclaration = indentAfterXmlDeclaration;<a name="line.107"></a>
<span class="sourceLineNo">108</span>    }<a name="line.108"></a>
<span class="sourceLineNo">109</span><a name="line.109"></a>
<span class="sourceLineNo">110</span>    /**<a name="line.110"></a>
<span class="sourceLineNo">111</span>     * Set the version for the XML declaration in case it's not already specified.<a name="line.111"></a>
<span class="sourceLineNo">112</span>     *<a name="line.112"></a>
<span class="sourceLineNo">113</span>     * &lt;p&gt;<a name="line.113"></a>
<span class="sourceLineNo">114</span>     * Default is {@link #DEFAULT_VERSION} ({@value #DEFAULT_VERSION}).<a name="line.114"></a>
<span class="sourceLineNo">115</span>     * &lt;/p&gt;<a name="line.115"></a>
<span class="sourceLineNo">116</span>     *<a name="line.116"></a>
<span class="sourceLineNo">117</span>     * @param defaultVersion XML version<a name="line.117"></a>
<span class="sourceLineNo">118</span>     */<a name="line.118"></a>
<span class="sourceLineNo">119</span>    public void setDefaultVersion(String defaultVersion) {<a name="line.119"></a>
<span class="sourceLineNo">120</span>        this.defaultVersion = defaultVersion;<a name="line.120"></a>
<span class="sourceLineNo">121</span>    }<a name="line.121"></a>
<span class="sourceLineNo">122</span><a name="line.122"></a>
<span class="sourceLineNo">123</span>    /**<a name="line.123"></a>
<span class="sourceLineNo">124</span>     * Set the character encoding for the XML declaration in case it's not already specified.<a name="line.124"></a>
<span class="sourceLineNo">125</span>     *<a name="line.125"></a>
<span class="sourceLineNo">126</span>     * &lt;p&gt;<a name="line.126"></a>
<span class="sourceLineNo">127</span>     * Default is {@link #DEFAULT_ENCODING} ({@value #DEFAULT_ENCODING}).<a name="line.127"></a>
<span class="sourceLineNo">128</span>     * &lt;/p&gt;<a name="line.128"></a>
<span class="sourceLineNo">129</span>     *<a name="line.129"></a>
<span class="sourceLineNo">130</span>     * @param defaultEncoding character encoding name<a name="line.130"></a>
<span class="sourceLineNo">131</span>     */<a name="line.131"></a>
<span class="sourceLineNo">132</span>    public void setDefaultEncoding(String defaultEncoding) {<a name="line.132"></a>
<span class="sourceLineNo">133</span>        this.defaultEncoding = defaultEncoding;<a name="line.133"></a>
<span class="sourceLineNo">134</span>    }<a name="line.134"></a>
<span class="sourceLineNo">135</span><a name="line.135"></a>
<span class="sourceLineNo">136</span>    @Override<a name="line.136"></a>
<span class="sourceLineNo">137</span>    public void writeStartDocument(String encoding, String version) throws XMLStreamException {<a name="line.137"></a>
<span class="sourceLineNo">138</span>        if (this.started)<a name="line.138"></a>
<span class="sourceLineNo">139</span>            return;<a name="line.139"></a>
<span class="sourceLineNo">140</span>        this.started = true;<a name="line.140"></a>
<span class="sourceLineNo">141</span>        this.handleOther(XMLStreamConstants.START_DOCUMENT);<a name="line.141"></a>
<span class="sourceLineNo">142</span>        super.writeStartDocument(encoding, version);<a name="line.142"></a>
<span class="sourceLineNo">143</span>    }<a name="line.143"></a>
<span class="sourceLineNo">144</span><a name="line.144"></a>
<span class="sourceLineNo">145</span>    @Override<a name="line.145"></a>
<span class="sourceLineNo">146</span>    public void writeStartDocument(String version) throws XMLStreamException {<a name="line.146"></a>
<span class="sourceLineNo">147</span>        this.writeStartDocument(this.defaultEncoding, version);<a name="line.147"></a>
<span class="sourceLineNo">148</span>    }<a name="line.148"></a>
<span class="sourceLineNo">149</span><a name="line.149"></a>
<span class="sourceLineNo">150</span>    @Override<a name="line.150"></a>
<span class="sourceLineNo">151</span>    public void writeStartDocument() throws XMLStreamException {<a name="line.151"></a>
<span class="sourceLineNo">152</span>        this.writeStartDocument(this.defaultEncoding, this.defaultVersion);<a name="line.152"></a>
<span class="sourceLineNo">153</span>    }<a name="line.153"></a>
<span class="sourceLineNo">154</span><a name="line.154"></a>
<span class="sourceLineNo">155</span>    @Override<a name="line.155"></a>
<span class="sourceLineNo">156</span>    public void writeStartElement(String localName) throws XMLStreamException {<a name="line.156"></a>
<span class="sourceLineNo">157</span>        this.handleStartElement(false);<a name="line.157"></a>
<span class="sourceLineNo">158</span>        super.writeStartElement(localName);<a name="line.158"></a>
<span class="sourceLineNo">159</span>    }<a name="line.159"></a>
<span class="sourceLineNo">160</span><a name="line.160"></a>
<span class="sourceLineNo">161</span>    @Override<a name="line.161"></a>
<span class="sourceLineNo">162</span>    public void writeStartElement(String namespaceURI, String localName) throws XMLStreamException {<a name="line.162"></a>
<span class="sourceLineNo">163</span>        this.handleStartElement(false);<a name="line.163"></a>
<span class="sourceLineNo">164</span>        super.writeStartElement(namespaceURI, localName);<a name="line.164"></a>
<span class="sourceLineNo">165</span>    }<a name="line.165"></a>
<span class="sourceLineNo">166</span><a name="line.166"></a>
<span class="sourceLineNo">167</span>    @Override<a name="line.167"></a>
<span class="sourceLineNo">168</span>    public void writeStartElement(String prefix, String namespaceURI, String localName) throws XMLStreamException {<a name="line.168"></a>
<span class="sourceLineNo">169</span>        this.handleStartElement(false);<a name="line.169"></a>
<span class="sourceLineNo">170</span>        super.writeStartElement(prefix, namespaceURI, localName);<a name="line.170"></a>
<span class="sourceLineNo">171</span>    }<a name="line.171"></a>
<span class="sourceLineNo">172</span><a name="line.172"></a>
<span class="sourceLineNo">173</span>    @Override<a name="line.173"></a>
<span class="sourceLineNo">174</span>    public void writeEmptyElement(String namespaceURI, String localName) throws XMLStreamException {<a name="line.174"></a>
<span class="sourceLineNo">175</span>        this.handleStartElement(true);<a name="line.175"></a>
<span class="sourceLineNo">176</span>        super.writeEmptyElement(namespaceURI, localName);<a name="line.176"></a>
<span class="sourceLineNo">177</span>    }<a name="line.177"></a>
<span class="sourceLineNo">178</span><a name="line.178"></a>
<span class="sourceLineNo">179</span>    @Override<a name="line.179"></a>
<span class="sourceLineNo">180</span>    public void writeEmptyElement(String prefix, String namespaceURI, String localName) throws XMLStreamException {<a name="line.180"></a>
<span class="sourceLineNo">181</span>        this.handleStartElement(true);<a name="line.181"></a>
<span class="sourceLineNo">182</span>        super.writeEmptyElement(prefix, namespaceURI, localName);<a name="line.182"></a>
<span class="sourceLineNo">183</span>    }<a name="line.183"></a>
<span class="sourceLineNo">184</span><a name="line.184"></a>
<span class="sourceLineNo">185</span>    @Override<a name="line.185"></a>
<span class="sourceLineNo">186</span>    public void writeEmptyElement(String localName) throws XMLStreamException {<a name="line.186"></a>
<span class="sourceLineNo">187</span>        this.handleStartElement(true);<a name="line.187"></a>
<span class="sourceLineNo">188</span>        super.writeEmptyElement(localName);<a name="line.188"></a>
<span class="sourceLineNo">189</span>    }<a name="line.189"></a>
<span class="sourceLineNo">190</span><a name="line.190"></a>
<span class="sourceLineNo">191</span>    @Override<a name="line.191"></a>
<span class="sourceLineNo">192</span>    public void writeComment(String data) throws XMLStreamException {<a name="line.192"></a>
<span class="sourceLineNo">193</span>        this.handleOther(XMLStreamConstants.COMMENT);<a name="line.193"></a>
<span class="sourceLineNo">194</span>        super.writeComment(data);<a name="line.194"></a>
<span class="sourceLineNo">195</span>    }<a name="line.195"></a>
<span class="sourceLineNo">196</span><a name="line.196"></a>
<span class="sourceLineNo">197</span>    @Override<a name="line.197"></a>
<span class="sourceLineNo">198</span>    public void writeProcessingInstruction(String target) throws XMLStreamException {<a name="line.198"></a>
<span class="sourceLineNo">199</span>        this.handleOther(XMLStreamConstants.PROCESSING_INSTRUCTION);<a name="line.199"></a>
<span class="sourceLineNo">200</span>        super.writeProcessingInstruction(target);<a name="line.200"></a>
<span class="sourceLineNo">201</span>    }<a name="line.201"></a>
<span class="sourceLineNo">202</span><a name="line.202"></a>
<span class="sourceLineNo">203</span>    @Override<a name="line.203"></a>
<span class="sourceLineNo">204</span>    public void writeProcessingInstruction(String target, String data) throws XMLStreamException {<a name="line.204"></a>
<span class="sourceLineNo">205</span>        this.handleOther(XMLStreamConstants.PROCESSING_INSTRUCTION);<a name="line.205"></a>
<span class="sourceLineNo">206</span>        super.writeProcessingInstruction(target, data);<a name="line.206"></a>
<span class="sourceLineNo">207</span>    }<a name="line.207"></a>
<span class="sourceLineNo">208</span><a name="line.208"></a>
<span class="sourceLineNo">209</span>    @Override<a name="line.209"></a>
<span class="sourceLineNo">210</span>    public void writeCData(String data) throws XMLStreamException {<a name="line.210"></a>
<span class="sourceLineNo">211</span>        this.handleOther(XMLStreamConstants.CDATA);<a name="line.211"></a>
<span class="sourceLineNo">212</span>        super.writeCData(data);<a name="line.212"></a>
<span class="sourceLineNo">213</span>    }<a name="line.213"></a>
<span class="sourceLineNo">214</span><a name="line.214"></a>
<span class="sourceLineNo">215</span>    @Override<a name="line.215"></a>
<span class="sourceLineNo">216</span>    public void writeDTD(String dtd) throws XMLStreamException {<a name="line.216"></a>
<span class="sourceLineNo">217</span>        this.handleOther(XMLStreamConstants.DTD);<a name="line.217"></a>
<span class="sourceLineNo">218</span>        super.writeDTD(dtd);<a name="line.218"></a>
<span class="sourceLineNo">219</span>    }<a name="line.219"></a>
<span class="sourceLineNo">220</span><a name="line.220"></a>
<span class="sourceLineNo">221</span>    @Override<a name="line.221"></a>
<span class="sourceLineNo">222</span>    public void writeEntityRef(String name) throws XMLStreamException {<a name="line.222"></a>
<span class="sourceLineNo">223</span>        this.handleOther(XMLStreamConstants.ENTITY_REFERENCE);<a name="line.223"></a>
<span class="sourceLineNo">224</span>        super.writeEntityRef(name);<a name="line.224"></a>
<span class="sourceLineNo">225</span>    }<a name="line.225"></a>
<span class="sourceLineNo">226</span><a name="line.226"></a>
<span class="sourceLineNo">227</span>    @Override<a name="line.227"></a>
<span class="sourceLineNo">228</span>    public void writeCharacters(String text) throws XMLStreamException {<a name="line.228"></a>
<span class="sourceLineNo">229</span>        this.handleCharacters(text);<a name="line.229"></a>
<span class="sourceLineNo">230</span>    }<a name="line.230"></a>
<span class="sourceLineNo">231</span><a name="line.231"></a>
<span class="sourceLineNo">232</span>    @Override<a name="line.232"></a>
<span class="sourceLineNo">233</span>    public void writeCharacters(char[] text, int start, int len) throws XMLStreamException {<a name="line.233"></a>
<span class="sourceLineNo">234</span>        this.writeCharacters(new String(text, start, len));<a name="line.234"></a>
<span class="sourceLineNo">235</span>    }<a name="line.235"></a>
<span class="sourceLineNo">236</span><a name="line.236"></a>
<span class="sourceLineNo">237</span>    @Override<a name="line.237"></a>
<span class="sourceLineNo">238</span>    public void writeEndDocument() throws XMLStreamException {<a name="line.238"></a>
<span class="sourceLineNo">239</span>        while (this.depth &gt; 0) {<a name="line.239"></a>
<span class="sourceLineNo">240</span>            this.writeEndElement();<a name="line.240"></a>
<span class="sourceLineNo">241</span>            this.depth--;<a name="line.241"></a>
<span class="sourceLineNo">242</span>        }<a name="line.242"></a>
<span class="sourceLineNo">243</span>        super.writeEndDocument();<a name="line.243"></a>
<span class="sourceLineNo">244</span>    }<a name="line.244"></a>
<span class="sourceLineNo">245</span><a name="line.245"></a>
<span class="sourceLineNo">246</span>    @Override<a name="line.246"></a>
<span class="sourceLineNo">247</span>    public void writeEndElement() throws XMLStreamException {<a name="line.247"></a>
<span class="sourceLineNo">248</span>        this.depth--;<a name="line.248"></a>
<span class="sourceLineNo">249</span>        if (this.lastEvent == XMLStreamConstants.END_ELEMENT)<a name="line.249"></a>
<span class="sourceLineNo">250</span>            this.indent();<a name="line.250"></a>
<span class="sourceLineNo">251</span>        this.handleOther(XMLStreamConstants.END_ELEMENT);<a name="line.251"></a>
<span class="sourceLineNo">252</span>        super.writeEndElement();<a name="line.252"></a>
<span class="sourceLineNo">253</span>    }<a name="line.253"></a>
<span class="sourceLineNo">254</span><a name="line.254"></a>
<span class="sourceLineNo">255</span>    private void handleStartElement(boolean selfClosing) throws XMLStreamException {<a name="line.255"></a>
<span class="sourceLineNo">256</span>        this.writeStartDocumentIfNecessary();<a name="line.256"></a>
<span class="sourceLineNo">257</span>        if (this.lastEvent == XMLStreamConstants.START_ELEMENT || this.lastEvent == XMLStreamConstants.END_ELEMENT<a name="line.257"></a>
<span class="sourceLineNo">258</span>          || (this.indentAfterXmlDeclaration &amp;&amp; this.lastEvent == XMLStreamConstants.START_DOCUMENT))<a name="line.258"></a>
<span class="sourceLineNo">259</span>            this.indent();<a name="line.259"></a>
<span class="sourceLineNo">260</span>        this.handleOther(selfClosing ? XMLStreamConstants.END_ELEMENT : XMLStreamConstants.START_ELEMENT);<a name="line.260"></a>
<span class="sourceLineNo">261</span>        if (!selfClosing)<a name="line.261"></a>
<span class="sourceLineNo">262</span>            this.depth++;<a name="line.262"></a>
<span class="sourceLineNo">263</span>    }<a name="line.263"></a>
<span class="sourceLineNo">264</span><a name="line.264"></a>
<span class="sourceLineNo">265</span>    private void handleCharacters(String text) throws XMLStreamException {<a name="line.265"></a>
<span class="sourceLineNo">266</span>        this.writeStartDocumentIfNecessary();<a name="line.266"></a>
<span class="sourceLineNo">267</span>        if ((this.lastEvent == XMLStreamConstants.START_ELEMENT || this.lastEvent == XMLStreamConstants.END_ELEMENT)<a name="line.267"></a>
<span class="sourceLineNo">268</span>          &amp;&amp; text.trim().length() == 0)<a name="line.268"></a>
<span class="sourceLineNo">269</span>            this.whitespaceBuffer.append(text);<a name="line.269"></a>
<span class="sourceLineNo">270</span>        else {<a name="line.270"></a>
<span class="sourceLineNo">271</span>            this.handleOther(XMLStreamConstants.CHARACTERS);<a name="line.271"></a>
<span class="sourceLineNo">272</span>            super.writeCharacters(text);<a name="line.272"></a>
<span class="sourceLineNo">273</span>        }<a name="line.273"></a>
<span class="sourceLineNo">274</span>    }<a name="line.274"></a>
<span class="sourceLineNo">275</span><a name="line.275"></a>
<span class="sourceLineNo">276</span>    private void handleOther(int eventType) throws XMLStreamException {<a name="line.276"></a>
<span class="sourceLineNo">277</span>        this.writeStartDocumentIfNecessary();<a name="line.277"></a>
<span class="sourceLineNo">278</span>        if (this.whitespaceBuffer.length() &gt; 0) {<a name="line.278"></a>
<span class="sourceLineNo">279</span>            super.writeCharacters(this.whitespaceBuffer.toString());<a name="line.279"></a>
<span class="sourceLineNo">280</span>            this.whitespaceBuffer.setLength(0);<a name="line.280"></a>
<span class="sourceLineNo">281</span>        }<a name="line.281"></a>
<span class="sourceLineNo">282</span>        this.lastEvent = eventType;<a name="line.282"></a>
<span class="sourceLineNo">283</span>    }<a name="line.283"></a>
<span class="sourceLineNo">284</span><a name="line.284"></a>
<span class="sourceLineNo">285</span>    private void writeStartDocumentIfNecessary() throws XMLStreamException {<a name="line.285"></a>
<span class="sourceLineNo">286</span>        if (!this.started &amp;&amp; this.addMissingXmlDeclaration)<a name="line.286"></a>
<span class="sourceLineNo">287</span>            this.writeStartDocument();<a name="line.287"></a>
<span class="sourceLineNo">288</span>    }<a name="line.288"></a>
<span class="sourceLineNo">289</span><a name="line.289"></a>
<span class="sourceLineNo">290</span>    /**<a name="line.290"></a>
<span class="sourceLineNo">291</span>     * Replace existing content of whitespaceBuffer with newline(s) followed by indentation to the current depth.<a name="line.291"></a>
<span class="sourceLineNo">292</span>     */<a name="line.292"></a>
<span class="sourceLineNo">293</span>    private void indent() {<a name="line.293"></a>
<span class="sourceLineNo">294</span><a name="line.294"></a>
<span class="sourceLineNo">295</span>        // Are we doing any indenting?<a name="line.295"></a>
<span class="sourceLineNo">296</span>        if (this.indent &lt; 0) {<a name="line.296"></a>
<span class="sourceLineNo">297</span>            this.whitespaceBuffer.setLength(0);<a name="line.297"></a>
<span class="sourceLineNo">298</span>            return;<a name="line.298"></a>
<span class="sourceLineNo">299</span>        }<a name="line.299"></a>
<span class="sourceLineNo">300</span><a name="line.300"></a>
<span class="sourceLineNo">301</span>        // Count how many initial newlines there were in the original stream<a name="line.301"></a>
<span class="sourceLineNo">302</span>        int newlines = 0;<a name="line.302"></a>
<span class="sourceLineNo">303</span>        for (int i = 0; i &lt; this.whitespaceBuffer.length(); i++) {<a name="line.303"></a>
<span class="sourceLineNo">304</span>            if (this.whitespaceBuffer.charAt(i) == '\n'<a name="line.304"></a>
<span class="sourceLineNo">305</span>              || (this.whitespaceBuffer.charAt(i++) == '\r'<a name="line.305"></a>
<span class="sourceLineNo">306</span>               &amp;&amp; i &lt; this.whitespaceBuffer.length() &amp;&amp; this.whitespaceBuffer.charAt(i) == '\n')) {<a name="line.306"></a>
<span class="sourceLineNo">307</span>                newlines++;<a name="line.307"></a>
<span class="sourceLineNo">308</span>                continue;<a name="line.308"></a>
<span class="sourceLineNo">309</span>            }<a name="line.309"></a>
<span class="sourceLineNo">310</span>            break;<a name="line.310"></a>
<span class="sourceLineNo">311</span>        }<a name="line.311"></a>
<span class="sourceLineNo">312</span>        this.whitespaceBuffer.setLength(0);<a name="line.312"></a>
<span class="sourceLineNo">313</span><a name="line.313"></a>
<span class="sourceLineNo">314</span>        // Add back that many newline(s) (at least one) followed by indent<a name="line.314"></a>
<span class="sourceLineNo">315</span>        newlines = Math.max(newlines, 1);<a name="line.315"></a>
<span class="sourceLineNo">316</span>        final char[] buf = new char[newlines + Math.max(this.depth, 0) * this.indent];<a name="line.316"></a>
<span class="sourceLineNo">317</span>        Arrays.fill(buf, 0, newlines, '\n');<a name="line.317"></a>
<span class="sourceLineNo">318</span>        Arrays.fill(buf, newlines, buf.length, ' ');<a name="line.318"></a>
<span class="sourceLineNo">319</span>        this.whitespaceBuffer.append(buf);<a name="line.319"></a>
<span class="sourceLineNo">320</span>    }<a name="line.320"></a>
<span class="sourceLineNo">321</span>}<a name="line.321"></a>
<span class="sourceLineNo">322</span><a name="line.322"></a>




























































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